Finding the Fourth Proportional to 64,128.59, 88,498.50 and 37,261.30

Step by Step Solution

1. Step 1: Write the proportion equation
   64,128.59 : 88,498.50 = 37,261.30 : x
2. Step 2: Convert to fraction form
   64,128.59/88,498.50 = 37,261.30/x
3. Step 3: Cross multiply
   64,128.59x = 88,498.50 × 37,261.30
4. Step 4: Simplify right side
   64,128.59x = 3,297,568,715.56
5. Step 5: Solve for x
   x = 3,297,568,715.56/64,128.59
6. Step 6: Final answer
   x = 51,421.19